package com.lzp.appexp;

/**
 * @description:
 * @author: lxp
 * @date: 2022/9/2 下午3:23
 */
public class Test4 {
    public static Test4 manager;

    private Test4() {
    }

    public Test4 getInstance() {
        if (manager == null) {
            synchronized (Test4.class) {
                if (manager == null) {
                    manager = new Test4();
                }
            }
        }
        return manager;
    }
}

